Getting closer: an empirical investigation of the proximity of user to their smart phones

@inproceedings{Dey2011GettingCA,
  title={Getting closer: an empirical investigation of the proximity of user to their smart phones},
  author={Anind K. Dey and Katarzyna Wac and Denzil Ferreira and Kevin Tassini and Jin-Hyuk Hong and Julian Ramos},
  booktitle={UbiComp},
  year={2011}
}
Much research in ubiquitous computing assumes that a user's phone will be always on and at-hand, for collecting user context and for communicating with a user. Previous work with the previous generation of mobile phones has shown that such an assumption is false. Here, we investigate whether this assumption about users' proximity to their mobile phones holds for a new generation of mobile phones, smart phones. We conduct a data collection field study of 28 smart phone owners over a period of 4… CONTINUE READING

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Key Quantitative Results

  • However, we also show that smart phone proximity within the same room (arm+room) as the user is true almost 90% of the time.
  • We also show that we can accurately predict the proximity at the arm level and arm+room level with 75 and 83% accuracy, respectively, with features simple to collect and model on a mobile phone. Further we show that for several individuals who are almost always within the arm+room level, we can predict this level with over 90% accuracy.

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